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Customer Ratings & Reviews

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Customer reviews

Rating 4.8 out of 5 stars with 1347 reviews

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Rating by feature

  • Value

    Rating 4.7 out of 5 stars

  • Quality

    Rating 4.8 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

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96%would recommend to a friend

Customers are saying

Customers express satisfaction with the RMx Series RM1000x power supply's high power output, strong performance in high-performance systems, and quiet operation. Many appreciate its modular design, ease of installation, and the included cabling. While some users note the larger size of the unit, the overall feedback highlights its positive attributes.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 18 Showing 341-360 of 1,347 reviews
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Perfect

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    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Work perfect for more than 2 years without turning off

    I would recommend this to a friend
  • Pros mentioned:
    Power

    Rated 5 out of 5 stars

    Massive Power Supply

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    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I was building my first ever super expensive PC and I had to get something that was able to power everything safety. This was it!

    I would recommend this to a friend
  • Pros mentioned:
    Power

    Rated 5 out of 5 stars

    Seems Good?

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    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I cant speak to the longevity of it, but it definitely is powering my PC fine.

    I would recommend this to a friend
  • Pros mentioned:
    Cables

    Rated 5 out of 5 stars

    Solid psu!

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Grabbed this after my 750 but the dust. Has ran flawlessly and handled some pretty good overclocking with a 5800x and a 6800xt and doesn’t break a sweat. Cables could be a little more flexible at the ends. Comes with plenty of extra cables. Wouldn’t use any other psu besides a Corsair!

    I would recommend this to a friend
  • Pros mentioned:
    Power

    Rated 5 out of 5 stars

    Good Stuff

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Exactly what I needed. Fully operational and fits perfectly into my pc. More powerful of a power supply, works with pretty much everything more or less.

    I would recommend this to a friend
  • Pros mentioned:
    Modular

    Rated 5 out of 5 stars

    Nice PSU

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Sleek power supply, add only the cables you need. No need to deal with hiding unused cables.

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Power bank review

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    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works great. I've had no issues after about 6 months.

    I would recommend this to a friend
  • Pros mentioned:
    Power

    Rated 5 out of 5 stars

    Does what you'd expect well!

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I bought this to be able to power a Ryzen 9 5900X, it works. It also has enough modules for the RTX 30 series graphics cards, if you want 3 PCI-e cables plugged into a 3070 or 3080 Ti, it will work and have as much power draw as it needs to operate. This is a good PSU.

    I would recommend this to a friend
  • Pros mentioned:
    Noise level

    Rated 4 out of 5 stars

    Good PSU

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    A good PSU so far for the price. My only complaint is the modular PCI cables are not snug enough when plugging into the PSU. So be sure to really seat the cables into the unit until they catch on the clip, and make sure they will not pull out. Other than that, it is quiet and I've had no problems whatsoever with the unit running 24/7. The cable quality seems to be good also. It has six 8-pin PCIe connections on the unit for plenty of expansion.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Perfect power supply for anything you need

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very easy to use, plenty of cables to use and any cables you don’t need can be unplugged from the power supply to be stored away when you do need them. Makes cable management easy to manage.

    I would recommend this to a friend
  • Pros mentioned:
    Noise level

    Rated 4 out of 5 stars

    Nice 1000w psu with modular cables but?

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It works. My issue is why make modular cables that daisy chain or split when all the cables supplied should be singles to each system component? With even a shroud over the psu and bottom its still kind of hard to hide the extra cable dongle like on the video card cable. The psu isn't haven't any issues other wise. No noticeable fan noise or buzz. I just wish the cables made more sense.

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Good product at a great price at the time.

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    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Worked great in the new killer intel machine. 13900k with AMD graphics and powers them fine.

    I would recommend this to a friend
  • Pros mentioned:
    Noise level

    Rated 5 out of 5 stars

    Upgrade and heavy use

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Switch from a 750w power supply to this 1k supply and so far handle my 3090 and 1080 with no issue. Fan is more silent than my gpu so it a major plus to it

    I would recommend this to a friend
  • Pros mentioned:
    Modular

    Rated 5 out of 5 stars

    Solid PSU

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great power supply. I have a few different Corsair PSUs and I haven't had any issues with them. Fully modular make installs a breeze as well.

    I would recommend this to a friend
  • Pros mentioned:
    Power

    Rated 5 out of 5 stars

    Second Times the charm

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    First power supply that I got failed after 1 week, where it would constantly supply power to my system. Was able to exchange for a new one and it has been running great!

    I would recommend this to a friend
  • Pros mentioned:
    Power

    Rated 5 out of 5 stars

    Flawless modular power supply

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    So nice for my new PC build never had a modular power supply before this thing is amazing, and makes me ready for when I want to upgrade to a 40 series graphics card or higher

    I would recommend this to a friend
  • Pros mentioned:
    Cables

    Rated 5 out of 5 stars

    It Works

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It works, it loses everything, no issues. Not much else to say. Easy to install and came with all the cables. I will admit custom cables might be in the future just because the ones that come with it are not the easiest to manage due to flexibility, but I do like how they’re braided and am happy for now.

    I would recommend this to a friend
  • Pros mentioned:
    Modular

    Rated 5 out of 5 stars

    10/10 Cable management with modular option

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Would highly recommend as this is modular, gives you better options for your PC case on your cable management

    I would recommend this to a friend
  • Pros mentioned:
    Noise level

    Rated 5 out of 5 stars

    Works hard and does not cause problems

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It's a power supply. It delivers enough power and it does so quietly. It features detachable cables, so you only need to plug in what you need. Maybe they should do some kind of crossover advertisement with that ubiquitous car insurance commercial.

    I would recommend this to a friend
  • Pros mentioned:
    Power

    Rated 5 out of 5 stars

    Does support 4090 and the 250 watt oc from icore 9

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It will support 4090 but please get the special Corsair adaptor 600watt. If overclocking while maxing out the card its about 550 watts oc 250 watts max oc icore 9 it will almost max out the 850 so if overclocking get a 1000

    I would recommend this to a friend